127742371 has 2 divisors, whose sum is σ = 127742372. Its totient is φ = 127742370.

The previous prime is 127742333. The next prime is 127742443. The reversal of 127742371 is 173247721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127742371 - 2¹¹ = 127740323 is a prime.

It is a super-2 number, since 2×127742371² = 32636226697403282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127742311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63871185 + 63871186.

It is an arithmetic number, because the mean of its divisors is an integer number (63871186).

Almost surely, 2^127742371 is an apocalyptic number.

127742371 is a deficient number, since it is larger than the sum of its proper divisors (1).

127742371 is an equidigital number, since it uses as much as digits as its factorization.

127742371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16464, while the sum is 34.

The square root of 127742371 is about 11302.3170633282. The cubic root of 127742371 is about 503.6300759832.

The spelling of 127742371 in words is "one hundred twenty-seven million, seven hundred forty-two thousand, three hundred seventy-one".